Here we go again. Here I am trying to get my truck on the road and this what happens. First I would like to say that before all of this my truck ran fine, I just had a delta of 25*. That is it. Saying all of this I replaced my oil cooler, blue spring update, egr delete, cleaned turbo, oe hg's, arp studs, head work ie (valve guides replaced and seals, milled), new standpipe, dummy plugs, installed exhaust manifold gasket, 6.4 Bangos installed, new radiator. I installed everything tried to crank but I got 4 on the icp reading it was no building pressure. So I pulled the oil filter to see if there was oil in the housing, not thinking about it at the time the oil looked milky. I just wanted to get the truck kranked. I posted on the org. and somebody said I might have installed my standpipe in wrong. So I pulled off the fuel rail on the passenger side and I did install the standpipe in wrong. So I swapped them around and she started building pressure immediately. Before long she was running I pulled the codes to see if there were any and there was none. So I decided to take her down the road to see if she would loosen up. I drove about 1/4 of. Mile and she started to knock, I mean like somebody playing the bass drum. So I limped her home, still no engine light. I pulled the codes and got a p0284 so I pulled off the driver side valve cover and there was milky oil all over the inside of the cover. I pulled the fuel rail and inspected the rockers and push rods. The only thing I found was the injector was not torqued it was loose. That is where I am at now. What do you guys think? I have good oil pressure and my eot and ect are good. Do y'all think a loose injector could cause a knock like that or maybe my exhaust manifold is leaking? I need some thoughts. Right now I plan on retorqeing the injectors and changing the oil. Oh and when I drained the coolant I had no oil in my coolant. Thanks.

The more I think about it. The more I remember. I also remember opening the hood and smoke. That is why I think exhaust manifold gasket. I put them on and used the specific torque pattern. I don't know. I'm just really worried about that sound. It didn't sound like metal on metal just really deep like a bass drum.

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